B18C5 Swap in Eg

what are the advanteages of using a p72 computer with a p28 with a b18c5... i want to use a p72 but ive been told to use a p28... they didnt tell me why tho... wat is better... i know that with the p28 u use all the old injectors and tps... but if i was to use p72 what do i have to do to make if run in an eg civic... also what is the difference between p72 and p73

i dont see why p72 wouldnt work, although it wont be as good as a tuned p28. the p72 wont throw a code or anything if the IAB's arent there. it doesnt on my gsr with skunk2 intake manifold. but with the p72 the vtec engagement will be set for the gsr at 4400 so thats not very suited for the motor, but it will work, might lose some power due to it.

and IAB's are the secondary butterflies in the gsr intake manifold.

why not just get a conversion harness and run the p73? if you are just gonna leave the motor stock for now i would think that would be the best computer for it.